package edu.jsnu.operate.beans;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component("applicationContextHelper")
public class ApplicationContextHelper implements ApplicationContextAware {

	private static ApplicationContext applicationContext;

	@Override
	public void setApplicationContext(ApplicationContext context) throws BeansException {
		applicationContext = context;
	}

	public static <T> T popBean(Class<T> clazz) {
		if (applicationContext == null) {
			return null;
		}
		return applicationContext.getBean(clazz);
	}

	public static <T> T popBean(String name, Class<T> clazz) {
		if (applicationContext == null) {
			return null;
		}
		return applicationContext.getBean(name, clazz);
	}

}
